Home / 20,519.43-28,317.06-11,566.94

Finding the Fourth Proportional to 20,519.43, 28,317.06 and 11,566.94

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Solution

The fourth proportional to 20,519.43, 28,317.06 and 11,566.94 is: 15,962.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.43 : 28,317.06 = 11,566.94 : x
  2. Step 2: Convert to fraction form
    20,519.43/28,317.06 = 11,566.94/x
  3. Step 3: Cross multiply
    20,519.43x = 28,317.06 × 11,566.94
  4. Step 4: Simplify right side
    20,519.43x = 327,541,592.41
  5. Step 5: Solve for x
    x = 327,541,592.41/20,519.43
  6. Step 6: Final answer
    x = 15,962.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.